/*
 * Copyright (c) 2011 Nathan Byrd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package org.stackconfig.web.gwt.server;

import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;

/**
 * Expose Spring services to GWT app
 * From http://pgt.de/2009/07/17/non-invasive-gwt-and-spring-integration-reloaded/
 */
public abstract class AutoinjectingRemoteServiceServlet extends RemoteServiceServlet {

    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        WebApplicationContext ctx = WebApplicationContextUtils
                .getRequiredWebApplicationContext(config.getServletContext());
        AutowireCapableBeanFactory beanFactory = ctx
                .getAutowireCapableBeanFactory();
        beanFactory.autowireBean(this);
    }

}
